Home / 85,674.81-118,231.22-47,949.06

Finding the Fourth Proportional to 85,674.81, 118,231.22 and 47,949.06

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Solution

The fourth proportional to 85,674.81, 118,231.22 and 47,949.06 is: 66,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,674.81 : 118,231.22 = 47,949.06 : x
  2. Step 2: Convert to fraction form
    85,674.81/118,231.22 = 47,949.06/x
  3. Step 3: Cross multiply
    85,674.81x = 118,231.22 × 47,949.06
  4. Step 4: Simplify right side
    85,674.81x = 5,669,076,424.89
  5. Step 5: Solve for x
    x = 5,669,076,424.89/85,674.81
  6. Step 6: Final answer
    x = 66,169.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.